Synonyms of vigorous

1 Syllable

hale, joyous, spry, proud, sound, well, brisk, strong, spright, spryer, ox, spryest, tough

2 Syllables

heftier, hardier, vibrant, racier, stallion, jocker, rugged, zippier, spunky, youthful, potent, mightiest, bouncing, toughest, mantling, sturdy, go-go, hearty, puncher, driving, manful, living, puissant, strenuous, strongest, dashing, jockstrap, brisker, valiant, mightier, lustier, manlier, hellbent, bright-eyed, zealous, healthy, trenchant, colter, sounder, heman, bracing, vivid, wieldy, strengthy, gung-ho, prouder, brawnier, gumptious, rousing, proudest, robust, soundest, manly, hefty, strapping, stalwart, racy, viral, mighty, tougher, studder, brawny, snappy, spanking, oxer, haler, peppy, spunkier, sturdier, well-built, vital, lusty, muscled, zippy, hardiest, ropy, gogo, stronger, hardy, manliest

3 Syllables

prospering, full-blooded, robustuous, robustious, tireless, athletic, kinetic, unfaded, powerful, agile, spirited, undecayed, livelier, go-getting, caveman, emphatic, red-blooded, stout-hearted, two-fisted, coruscant, lion-hearted, forcible, unwearied, unwearying, flourishing, weariless, efficient, muscular, dynamic, galvanic, virile, impellent, active, liveliest, gingery, steamroller, take-charge, take-over, hard-driving, well-pleased, gogetting, beefcake, militant, sinewy, herculean, lively, undimmed, intense, forceful

4 Syllables

rosy-cheeked, productive, propulsive, peaches-and-cream, unwithered, masculine, well-constructed, vinegary, exuberant, effective, persuasive, nimble-witted, easy-moving, bushy-tailed, fructiferous, animated, enthusiastic, mettlesome, ever-changing, gladiatorial, heavy-duty, assertory, able-bodied, powerhouse, energetic, enterprising

5 Syllables

well-conditioned, semitropical

6 Syllables

indefatigable